Fig. 2From: Thin-sheet electromagnetic modeling of magnetovariational data for a regional-scale studyField data from magnetovariational sounding (MVS) over Finland, presented as real induction arrows at a period of 300 s. Data were inverted in accordance with Parkinson’s convention; therefore, the real induction arrows point towards more conductive zones. Geographical coordinates of map boundaries (using the Mercator projection) and the position of Helsinki are given for referenceBack to article page